(INDIANAPOLIS) (AP) - Authorities say they've seized more than five tons of marijuana and some $4.3 million in cash in what is believed to be the biggest drug bust ever made in Indiana.

Officials say that drug agents found dozens of bales of wrapped marijuana at a warehouse on the west side of Indianapolis last week after an investigation that started in March when officers found about $2.6 million inside a hidden compartment of a semitrailer.

The drugs and cash are believed linked to a Mexican drug cartel. U.S. Attorney Joe Hogsett says investigators believe the cash was on its way to Mexico while the seized marijuana had a bulk value of about $5 million.

Four men are jailed on federal drug charges in connection with the bust.